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Re: [PATCH 2.6.33] mac80211: fix skb buffering issue

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On Tue, 2010-01-05 at 23:30 -0600, Larry Finger wrote:

> Reauthentication fails with a pop-up to reenter the WPA2 secret as I'm
> using NetworkManager. I can only reconnect if b43 (and mac80211) are
> unloaded and reloaded. I pulled the patch and confirmed that proper
> behavior is returned.

Ouch.

I can't seem to reproduce this with hwsim, but it never touches the
queues.

I think it may be because I forgot about
53623f1a09c7a7d23b74f0f7d93dba0ebde1006b ...

The patch below is certainly needed, but I'm not entirely sure it'll fix
your issue, can you give it a try please?

johannes

--- wireless-testing.orig/net/mac80211/iface.c	2010-01-06 12:00:03.000000000 +0100
+++ wireless-testing/net/mac80211/iface.c	2010-01-06 12:02:17.000000000 +0100
@@ -328,7 +328,7 @@ static int ieee80211_open(struct net_dev
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		ieee80211_queue_work(&local->hw, &sdata->u.mgd.work);
 
-	netif_start_queue(dev);
+	netif_tx_start_all_queues(dev);
 
 	return 0;
  err_del_interface:
@@ -356,7 +356,7 @@ static int ieee80211_stop(struct net_dev
 	/*
 	 * Stop TX on this interface first.
 	 */
-	netif_stop_queue(dev);
+	netif_tx_stop_all_queues(dev);
 
 	/*
 	 * Purge work for this interface.
--- wireless-testing.orig/net/mac80211/mlme.c	2010-01-06 12:00:03.000000000 +0100
+++ wireless-testing/net/mac80211/mlme.c	2010-01-06 12:02:17.000000000 +0100
@@ -731,7 +731,7 @@ static void ieee80211_set_associated(str
 	ieee80211_recalc_smps(local, sdata);
 	mutex_unlock(&local->iflist_mtx);
 
-	netif_start_queue(sdata->dev);
+	netif_tx_start_all_queues(sdata->dev);
 	netif_carrier_on(sdata->dev);
 }
 
@@ -767,7 +767,7 @@ static void ieee80211_set_disassoc(struc
 	 * time -- we don't want the scan code to enable queues.
 	 */
 
-	netif_stop_queue(sdata->dev);
+	netif_tx_stop_all_queues(sdata->dev);
 	netif_carrier_off(sdata->dev);
 
 	rcu_read_lock();
--- wireless-testing.orig/net/mac80211/offchannel.c	2010-01-06 12:02:37.000000000 +0100
+++ wireless-testing/net/mac80211/offchannel.c	2010-01-06 12:03:02.000000000 +0100
@@ -113,7 +113,7 @@ void ieee80211_offchannel_stop_beaconing
 		 */
 		if (sdata->vif.type != NL80211_IFTYPE_STATION &&
 		    sdata->vif.type != NL80211_IFTYPE_MONITOR)
-			netif_stop_queue(sdata->dev);
+			netif_tx_stop_all_queues(sdata->dev);
 	}
 	mutex_unlock(&local->iflist_mtx);
 }
@@ -131,7 +131,7 @@ void ieee80211_offchannel_stop_station(s
 			continue;
 
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-			netif_stop_queue(sdata->dev);
+			netif_tx_stop_all_queues(sdata->dev);
 			if (sdata->u.mgd.associated)
 				ieee80211_offchannel_ps_enable(sdata);
 		}
@@ -153,7 +153,7 @@ void ieee80211_offchannel_return(struct 
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (sdata->u.mgd.associated)
 				ieee80211_offchannel_ps_disable(sdata);
-			netif_wake_queue(sdata->dev);
+			netif_tx_wake_all_queues(sdata->dev);
 		}
 
 		/* re-enable beaconing */


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